9
AZM300
Operating instructions
Solenoid interlock
EN
Table 3: I/O data and diagnostic data
(The described condition is reached, when Bit = 1)
Bit n°
Request byte
Response byte
Diagnostic error warning
Diagnostic error
Bit 0:
Magnet on, irrespective of
power to lock or power to
unlock principle
Safety output activated
Error output Y1
Error output Y1
Bit 1:
---
Safety guard closed AND
locking/unlocking possible
Error output Y2
Error output Y2
Bit 2:
---
Actuator detected and locked
Cross-wire short
Cross-wire short
Bit 3:
---
---
Temperature too high
Temperature too high
Bit 4:
---
Input condition X1 and X2
---
Incorrect or defective actuator,
bracket broken
Bit 5:
---
Valid actuator detected
Internal device error
Internal device error
Bit 6:
---
Error warning
1)
Communication error between the field
bus Gateway and the safety switchgear
---
Bit 7:
Error reset
Error (enabling path switched off) Rotary handle not in authorised
intermediate position
Rotary handle not in authorised
intermediate position
1)
after 30 min -> fault
The leading diagnosis message through bit 1 indicates whether locking or unlocking of the guard system is possible.
The solenoid interlock
cannot be unlocked
if e.g. the door pulls the turret out of its rest position beyond the set latching force.
This can occur if doors are heavily distorted or when pulling the door.
The solenoid interlock can only be
locked
if the turret is in the rest position, i.e. the latching force is sufficient to pull the guard system into the
correct position.
6.3 Solenoid interlock with serial diagnostic function SD
Solenoid interlocks with serial diagnostic cable have a serial input and
output cable instead of the conventional diagnostic output. If solenoid
interlocks are wired in series, the diagnostic data are transmitted
through the series-wiring of the inputs and outputs.
Max. 31 solenoid interlocks can be wired in series. For the evaluation of
the serial diagnostics line either the PROFIBUS-Gateway SD-I-DP-V0-2
or the Universal-Gateway SD-I-U-... are used. This serial diagnostic
interface is integrated as a slave in an existing field bus system. In this
way, the diagnostic signals can be evaluated by means of a PLC.
The necessary software for the integration of the SD-Gateway is
available for download at products.schmersal.com.
The response data and the diagnostic data are automatically and
permanently written in an input byte of the PLC for each solenoid
interlock in the series-wired chain. The request data for each solenoid
interlock is transmitted to the component through an output byte of the
PLC. In case of a communication error between the SD-gateway and
the solenoid interlock, the switching condition of the solenoid interlock
is maintained.
Error
A fault has occured, which causes the safety outputs to be disabled.
The fault is reset, when the cause is eliminated and bit 7 of the request
byte changes from 1 to 0 or the safety guard is opened. Faults at the
safety outputs are only deleted upon the next release, as the fault
rectification cannot be detected sooner.
Error warning
A fault has occurred, which causes the safety outputs to be disabled
after 30 minutes. The safety outputs initially remain enabled. This
enables the shutdown of the process in a controlled manner. An error
warning is deleted when the cause of error is eliminated.
Diagnostic error (warning)
If an error (warning) is signalled in the response byte, detailed fault
information can be read out.
On wiring SD devices, please pay attention to the voltage
drop on the cables and the current carrying capacity of the
individual components.
Accessories for the series-wiring
For convenient wiring and series-wiring of SD components,
the SD junction boxes PFB-SD-4M12-SD (variant for the
field) and PDM-SD-4CC-SD (variant for control cabinet on
carrier rail) are available along with additional comprehensive
accessories. Detailed information is available on the Internet,
products.schmersal.com.
